2002
DOI: 10.1215/s0012-7094-02-11312-x
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Finiteness of de Rham cohomology in rigid analysis

Abstract: For a large class of smooth dagger spaces-rigid spaces with overconvergent structure sheaf-we prove finite dimensionality of de Rham cohomology. This is enough to obtain finiteness of P. Berthelot's rigid cohomology also in the nonsmooth case. We need a careful study of de Rham cohomology in situations of semistable reduction.

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Cited by 25 publications
(35 citation statements)
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“…Since N → L is quasi-dagger, we may assume, after passing to a finite covering, that N → L is associated with a closed immersion N 0 → L 0 into a reduced and irreducible affinoid dagger space L 0 . As explained in [13] 0.1, the results of [4] 1.10, [21] imply resolution of singularities for affinoid dagger spaces. Performing a resolution of singularities in our situation, we may in view of 2.2 and the induction hypothesis assume that L 0 is smooth.…”
Section: Finiteness and Formal Modelsmentioning
confidence: 80%
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“…Since N → L is quasi-dagger, we may assume, after passing to a finite covering, that N → L is associated with a closed immersion N 0 → L 0 into a reduced and irreducible affinoid dagger space L 0 . As explained in [13] 0.1, the results of [4] 1.10, [21] imply resolution of singularities for affinoid dagger spaces. Performing a resolution of singularities in our situation, we may in view of 2.2 and the induction hypothesis assume that L 0 is smooth.…”
Section: Finiteness and Formal Modelsmentioning
confidence: 80%
“…Performing a resolution of singularities in our situation, we may in view of 2.2 and the induction hypothesis assume that L 0 is smooth. But in this case we can apply [13] 3.5, 3.6 to conclude.…”
Section: Finiteness and Formal Modelsmentioning
confidence: 98%
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“…Berthelot a démontré qu'elle vérifiait la propriété de finitude pour les variétés lisses ou propres [7], ainsi que la dualité de Poincaré et la formule de Künneth [6] ; le théorème de finitude a ensuiteétéétendu aux variétés quelconques par Grosse-Klönne [17]. Dans cet article, nousétudions les classes de Chern et les classes de cycles.…”
Section: Introductionunclassified